Acausality of Massive Gravity
High Energy Physics - Theory
2013-03-18 v3 General Relativity and Quantum Cosmology
Abstract
We show, by analyzing its characteristics, that the ghost-free, 5 degree of freedom, Wess--Zumino massive gravity model admits superluminal shock wave solutions and thus is acausal. Ironically, this pathology arises from the very constraint that removes the (sixth) Boulware-Deser ghost mode.
Keywords
Cite
@article{arxiv.1212.5835,
title = {Acausality of Massive Gravity},
author = {S. Deser and A. Waldron},
journal= {arXiv preprint arXiv:1212.5835},
year = {2013}
}
Comments
4 pages, LaTeX, references added, PRL version